Mining and loading apparatus



April 22, 1930. E. c. MORGAN v MINING AND LOADING APPARATUS Original Filed Deo. 25. 1919 5 Sheets-Sheet April Z2, 1930.` l E. c. MORGAN 1,755,332

' v MINING AND LOADING APPARATUS original Filed veel 25, 1919 5 sheetsheet 2 April 22 1930. E. c. MORGAN 1,755,332

i MINING AND LOADING APPARATUS Original Filed Dec. 25, 1919 5 Sheets-Sheet 31 April 22, 1930. E. c. MORGAN 'MINING ,ND LOADING APPARATUS Original' Filed Dec. 23

1919 5 Sheet-s-Sheet 4 I n Il April 22, 1930. E. c. MORGAN vMINNG' AND LOADING' APPRTUS Original Filed Dec. 23, 1919 5 Sheets-Sheet 5 y Edina/Mw? walking fluid pressure jack mechanism of Figs. 1 and 2;

Fig. 26 is an elevational view or the structure shown in Fig. 25 and shows a plurality of ropes for movingl the coal splitting toolsA in dislodging direction and asingle-rope-for returning the coal splittingtools to initial position; and Y Y.

Fig. 27 is a diagrammatic illustration illustrating the advantages vot the use of coal splitting devices for dislodging material having therein small sections of a very hard material which can be cut, if at all, by means or coal cutting mechanism only with-very great diiiiculty. Y Y Y Referring to Figs. 1 and 2 it will be seen that the main frame 28 is mounted on tractor Y mechanism comprising` endless tractor belts 29 and 30 for transporting the mining and loading machine: over the mine floor 31 in advance of the traclt 32. I prefer to use tractor mechanism operatively connected to the motor 33 so as to distribute the weight or the mining and loading machine overa wider Varea notfonly to facilitate transportation of the mining and loading machine over the mine floor but alsoV to assist the roof acks 34and 35 in more lirmly holding the main frame 28 in adjusted position Vv`during the mining and loading operations hereinafter described. These root jacks are preferably pivotally connected to the upper side por-v tions of the frame 28 as shown in Figs. 1 and 2, the pivotal connection being shown'at 36 in Fig. 2. A wheel 3?-screw threaded on the rod 38 may be relied upon to thrust the upper end of said rod against the roof 39.

At the lower portion of the frame' 28 is a rearward extension 40 to which is pivoted at 41 the lower side of the Vhopper 42. This hopper is provided with a rearward extension 43. An endless conveyor 44 is mounted to'extend yfrom the bottom of thejhopper 42 to the outer open end 45 of the horizontal Ychute 43.V

This conveyor V44 of the motor 46. i

Connected to the upper rear portion of the frame 28 is a horizontal U-shaped extenmay be operated by means sion 47 at the center of which as indicated at 48 -in Figs. 1 and 2 is pivoted the arm 49 which is T-shapedand connected at 50, 50

to the hopper 42'and chute 43. It will thusbe seen that the pivotal connections 41 and 48- are in vertical alinement and permit the hopper 42 the chute 43 and the conveyor 44 to be swung laterally `so that the delivery` end 45 of the conveyor 44 may extend into Y a mine car 51 on the track 32 or on a tra'clr delivered into the hopper53 and transfer such material rearwardly and upwardly forV delivery into the hopper 42. V1t should be noted that the hopper 42- is comparatively large and deep so that it may act temporarily as a storage hopper while the T.conveyor 52 continuesto deliver material to such hopper and the conveyor 44 is out of `operation during the removal of a loaded ininecar and the bringing up of anempty mine' car.

yMounted on theforward end of the frame 28 is a supple-mental frame 54 providedwith a ring Y surrounding Athe lower portion ot the hopper 53 andhaving an annular bearing connection with Vthe frame 28 so as to support the supplemental frame 54 forV swinging movements laterally on an upright axis approximately at the center of the hopper 53. Mounted on the frame54 and extending radially relative to the upright axis 56 ofy swinging movementV of the frame 54 is avr rc- Y ceiving endless conveyor operatedby a motor 58. At one sidefof the frame and the conveyor 57 is connected'a scooping plate 59 for directing on to the conveyor 57 such material as may be on the floor ahead of it.

it shouldV be noted that theV conveyor 57 swings with the supplemental frame 54 onV Y which also have a cutting action on account or" `being in the nature of chisels; The tool holder 61 carries similar coalsplitting and cutting tools 64 and 65.` The upper side of the tool holder 61 carries a coal splitting and cutting tool 66 and the lower tool holder 60 carries a similar splitting and cutting tool 67 as shown in Figs. 3V and 4.V The tools, 62, 63, 64 and 65 may-be in vertical alinement or the intermediate tools andV 62 maybe in advance 'of the upper-mostVV and lower-most tools 64 and 63. The tools 62, 63, 64 Vand 65 are rigidly-connected to the tool holders 60 and 61 as by means of set screws 'as illustrated at 68 in Figs. 1, 8 and'9.A lt will thus be seen that-the tools ce, es, 'si and 65 constitute 7 spaced-apart fingers in approximate vertical `alinement-'movable with the frame 54 along arcuate 'paths of travel on the upright axis 56 to tear asunder or dislodge the-coal as illustrated vin Fig. 1 and also in Fig. 15. The fingers 62 and 63 are rigidly connected to the frame 54 and move bodily therewith when the Vlatter is swung on the upright axis'56.- f

The tool holder61 is connected to an auxiliary trame 69 to which are rigidly connected the downwardly extending piston rods 70', 71

extend'ngthrogh the bearing:V boxes 7 2 and 73 to the pistons 74 and 75, in the vertical cylinders 76 and 77 in the liframe. 54. vBy means of thismechanismth'e kfingers 64 and may be adjusted in elevationtogether with 4the tinger 66 and at the Sametime the tool holder 61 may be rigidlyl .connected tothe frame.; 54 .so as tomove-'bodily therewith,

V'particularly when the` pistons 74 and-75 to-v getherAv with the 'piston rods70 and- 71 are located'a comparatively Wide'distance apart.v

.lnasmuch as the frame 54`isso mounted onv the rame728 as to always occupy a 'position' spaced a short distance from the mine .floor 'the' ngers 62 `and 63 will alwaysremain approximately at their adjusted elevations. It

should be understood,rhowever, that the fin-v ger 62mayhavea-ny desired spacing and may initiallybe located at varying elevations. Int.

low roof mine chambers the tool holder 61 together with theparts Yconnected lthereto including the ypiston rods 7 O and :71 may `be entirely omitted and the lingers .on the frame 54 relied -upon to dislodge the material particularly when the upper finger y62 is located at an elevation approximately that of *theV 61 for thrusting the plunger -83 against the roolE 84. The primary. unctionot Vthe jacirsV '78 and 82, however, is toguide the tool holders 60 and 61V respectively yalong thefloor and root. of themine chamherso` as to hold the 101 for receiving th'eplunger-102 Vat the upper', end ofrwhichis ar'roof vplatiegf103. havingfza serrated upper surface;` Likewise theY AroofV jack 100 comprises axlcylinde`r 104 orre-jV ceiving'the plunger-,105 at the flipper end of' Vwhichxistherootlplate106. r1 M dislodging tools'62, 63 amd64, 65 at-predetermined distancesl from the lioor and roof..

By referring to Fig. 4'it will .be seen that the-,roof cutter 66 is pivotedat v85tothe tool holder 61 and that the licor cutter 67.is likewise pivoted at86 to the toolholder`60. 5 The' root cutter 66 may: be adjusted. in lposition hy means ot thetluid pressure motor 287 `comprising the cylinder '88* and piston 89 connected by the piston rod 90 at 91-to`the lever l92 connected to the cutter 66. The Hoor cutter '67 is likewise adjusted in position by means .ofthe lever`93 pivotally connected at 94. to the pistonv rod95vk which is connected to the piston 96 in the cylinder' 97 of the `fluid pressuremotor 98.

f ln order to exert considerable pressure baclr of the tool holders 60 and 61' I have" provided'apair of walking root jacks 99 and' 190..l rlhe root jaclr v99 comprises a cylinder At thelower portions ofthe cylinders 10.1

" and-104 are vannular bearings`l67 and108 for,

`fluid pressure motors shown in Figs are also relied upon to alternately` move the 1 roof JacksV 99 and-100 orwardly'to new roof receiving the rings oi' collars 109and 110 whicharerespectively connected tothe piston ders 115, 116,pivotally connected as indicated at 117 in Fig. 4 tothe toolholder 60, horizon;y

rods 111 a'nd112. The latter areconnected rel kspectively to pistons'113 and v114 in the vcylintal slots 117 and118 being provided in the tool holder60 to perniitrlateral swinging move- I ments of the liuid pressure motors vcompris-Y ingthe cylinders 115, 116 when such uid pressure motors are operated to move the dis-E lodging tools 62 and 463l intothe unmined' Surrounding the plu1igers102 l.and 1O5so5 thatthe latter will be freely slidable there-1' through aretherings or collars 119 and 120A which are connected respectively by the piston rods 121 and 122 tothe pistons 123 and are pivot'ally connected vto the tool holder 61 .as indicated at 127 inlFig. 4, and slots-128 and L129 are provided Vin the tool holder 61' to permit lateral swinging-'movements of the tluid pressure ymotors comprising the cylinders and 126 when such iuidpressure l motors are operated to actuate the dislodging tools 64 and 65. 'p .i

t should he understood that the horizontal 3 and :4v

propping positions where such roof jacks will alternately act as anchorages for the fluid pressure. motors when acting-to thrust forward the dislodging tools, particularly those designated 62, 63, 64 and 65. Each of the rluid pressure motors shown in Figs. 3 and 4 may be controlled by aset of manually opp erated valves each havingthe construction illustrated in Fig. 5. Y y

For` instancewhen the handle v130 is in its right hand position as shown in Figs. 3 and 4 the valve passage 131. of the valve 132 will y124 in the cylinders 125 and 126. The latter ice connect the chamber 133 through the pipe 134 l andthe pipe 135 to thesupply pipe 136. The

passage to the exhaust pipe 137 will therefore be closed and pressure willbe exerted on the piston 123 to move theY same to the lett as viewed in Fig. 4. At theA same time asthel lever 130 moves to theiright the lever 138 'should be moved to the right to connect theV eupplypipe 139 through the valve 140 to the chamber 141 to eii'ect movementot the piston 113 to the lett. When the piston 123 is moved' to the left the valve 141 will also occupya position similar tothat shown in Fig. 5,' 1421i designating vthe exhaust pipenow correspond-y ing` tothe pipe' 135 inFig. 5.,l In-the same@r f manner when vthe lever. 138 is moved tothe y right 'the valvej143 opens the' space tothe left tothe piston 113 through the exhaust 144.

y By referring to Fig. 2 it willbe seen that y the supply pipe 136`is connected toa manifold'l 145 Yand a valve 146 is providedin the pipe 136 to control theflow of the .pressure nnediupgfl-A4 y to the Afluid pressure motor :comprising the cylinder 125. In a similar manner the pipe 139is connected to themanifold 145 and providedwith a controlling valve 147. y

The cylinder 101 of the roof jack 99 is connectedby a pipe 148 to the manifold 145 and this pipe is 'provided with a controlling valve 149 similar to that shown in Fig. 5 an exhaustrconnection being indicated at 1,50. rlherefor'e, when the valve 149 is opened the pressure medium goingthrough the pipe 148 into the cylinder 101 will force the plunger 102 into roof engaging position toanchor the roof jack 99. lVhen the valve 149 is opened to the exhaust 150 the plunger 102 will slide through the ring or collar 119 and thus release the plate 103 from the roof. W'hen the roof jack 99 is in released position and theV pistons 113 and 123 are moved to the left the said roof jack 99 is moved forward to a Vnew position whereupon the valve 149 is again manipulated to move the plunger 102 toanchoring position. lminediately after the `roof j ack 99 has been thus moved forward and again anchored the roof jack 100 is released by opening the valve 151 to exhaust 152 so that the pressure in the vcylinder 104 will be'relieved and permit the plunger 105 to descend. As soon as this occurs the levers 130 and 138 are moved toward the left as viewed in Fig. 4 so as to connect the chambers 133 and 154 to the exhausts 137 and 153 and so as to connect the supply pipes 136 and 139 to the chambers at the left Aof the pistons 123 and 113. VSince the roof jack'99 is anchored at this time the tool holding frames 61 and l60 will be moved forward to cause the fingers or diggers 62, 63, 64 and 65 to dig into the material at the upright arcuate mine wall and dislodge the material as indicated in Fig.; 1 in position to be received by the conveyor 57 for transfer to the hopper 53l and in turn to be transferred by the conveyor 52 tothe hopper 42 for transfer by the conveyor 44 to the mine car-51. Y

While the roof jack 99 is in anchored position 'and the fluid pressure motors connected thereto are operating to move the toolholders and 61 forward arcuately the roof jack 100 should be moved forward to a new position by means of the fluid pressure motors connected thereto which fluid pressure motors comprise the cylinders 126 and 116 as shown in Fig. 3. These fluid pressure motors are connected Yby the pipes 155 and 156 to the manifold 145, the pipe 155 being provided with a valve 157 and the pipe 156 being provided wit-h a valve 158. The pistons in these fluid pressure motors may be moved in one direction or the other by operating the levers 159 and 160 which correspond to the levers 130 and 138 and are connected to similar sets of valves each of which has a construction illustratedin Fig. 5. The throw of each of these levers i's approximately 90 degrees as matassa illustrated .bythe dotted line position 161 in Fig. 5.

Inas'muc'h as the fluid pressure motors 78, 82, 87 :and 98-also have reciprocating pistons `the movements-of the ilatter may be controlled by sets of valves similar to those operated by lever 130. To operate the motor 87 the lever 162 is moved in lone direction'or the other to control the pressures on 'the piston 89'from the supplypipe 163 which is connected to the manifold 145. A supply .pipe 164 extends @from the manifold to lthe valves operated lby roof jacks being provided with exhausts as indicated at 150V and 152. Y

The manifold 145 is connected by Va pipe 170 through a swivel joint 171 to the pipe 172 which is-c'onnected to the pump 17 3 connected to the motor 33. Theswivel joint 171 is located .at *thev aX-is 56 as shown in Fig. 1 so "that the manifold 145 and all the pipes connected thereto may be moved bodily-along arcuate lines while the pump 173 is is being operated bythe motor 33 to maintain fluid pressure 1in the manifold 145 to operate the fluid Vpressure motors whenever desired.

It should be noted that when the fluid pres-v sure motors connected Vto the roof Vanchoring jacks are operated to move lthe series of diggersrarcuately along the mine wall on the upright VaXis 56, suoli fluid pressure motors will be moved arcuately on the axis of the anchored roof jacks lbut the collars 119, 120 and 109, 110 will permit'such movements of the fluid pressure motors relatively to the roofl jacks, and such `arcuate movements relatively to the tool yholders 60 and 61 Will be permitted by reason of the pivotal. connectionsV indicated at, 117 and 127 in Fig. 4, suflicient lateral movement of the fluidpressure motors relatively :to the tool holders 60 and 61 being permittedby the horizontal slots 174, 118 and 128, 129. K Y

It should also be noted that while the: strokes lof the pistons relatively to the Acylinders of the fluid pressure motors connected to the roof jacksare continuous from one end of Veach cylinder to theotherend thereof during the normal operation of the walking roof jacks itYV is V'desirable to lock the pistons in ythe motors87, l98, A82 and 7 8V in adjusted position and 'this maybe effected by move'- 4ments of the levers 162, 165, 168 andy 166* to vertical posi-tions where .thewpassage 131 shown in Fig. 5 will be cut `olf from any of the pipes to whichithe valves are connected.

However, the pistons are at the ends 'of the cylinders such-locking' may be eife'cted by closingfthe valve adjacent they manifold k145K.

l Asa-shown inv Fig. 6 the receivingconveyor.

571 may comprise kanendless belt 17 -mountecl on rollers 176 and 17 7Vl and provided-with lateral sprocket chains 178 and 179l for engagef"y ment by the sprockets 180 and181 onthe transverse shaft 182 connectedto the gearing 183 operated bythe motori-58. Preferably the endless belt 17 5 travels upwardlyalong a chutey comprising thejvertical sidey plates s 185 and 186 and the bottom plate 187. f v f The conveyor `frame is pivoted at -188 on' a horizontal axisonthe upper peripheral. edge of the hopper l53 so that this receiving l conveyor 57y maybe moved-"up and VVdown on the axis 188 independently.ofv the frame 54. The outer-end :of theconveyor may rest on the 'floor and slide over the same or thevertical plates189 connected tothe bottom of the conveyork frameatoneside thereof mayI 1 `:be relied upon 'to rest against the ring 55 asshown in Fig. y6 to hold theconveyor spaced slightly from the-floor Aat fthe mine wall.

Extending across the front end of the cons veyor is .a scoop 190 lprovided with a pluralityl of spaced-apart slots 191to receive the teeth192 ofthe jigger plate 193'which is located at the floor atthe base ofthe mine v wall `inposition to move the dislodged material onto the conveyor belt 187 as shown in Fig.v 6. The horizontalv 'Iiioor yplate-193 eX- y tends under 'the scoopr 190 and is yprovided with a rearward extendingarmA 194 mounted on the bracket`195. A spring 196 is connected' between the vertical plate 189andthe forward end of the arm 194 to continuallyl urge the plate 193 forward toa position beyond the arcuate face of the mine wall. The conveyor is located ahead ofthe .dislodgin'g mechanismv as shownin Fig. 1 but Vwhen the plate'193 en# gages unminedv materialits forward Vmove'- ment will be stopped but when thel material isldislodged the plate will move under y such V.dislodged material assliown in Fig. 6. I-Iow-v ever,- thel plate 193 may have the length of its extended portion varied so as to assure I l the movement of the'dislodged material on tothe conveyor 57. Y

In'.v order to secure a comparatively slow movement of the plate 193 with the material thereon toward the conveyorvI have provided an upwardly extending lever 197 at the rear end ofthe arm'194in position to be engaged by the pin 198 extendingvl laterally from the gear 199as shown in Figs. 6.and 7.* This gear is operatively connectedbythe pinion 20() to the ymotor l201 which is mounted on thevertical plateV 189. v"When thepin'198 is rotated itengages the lever V197 to move the arm 194'and the vplate193 rearwardly against i Vthe action of entspring- 196. The teeth 192 jengaging the dislodgedmateriall will' effect movement 'ofthe latter slowly @toward the has been rotated clock-wiseas VViewed 111 Flg.

6 slightlymore than 180 v.degreesv the arm194 will be released andthe springv 196 will be free to act to suddenlymove the-plate 193 Vleft as v'viewed inFig. 6. -After the p in 1.98

forward under anymaterial atthe base 'of the mine wall in the path of theplate.

In Fig. 15 I have illustrated diagrammati-- 'cally therelative positions of the diggers orsplitting tools 62f-to167 inclusive and the manner in which these tools act to split the vmaterial not only [along the upright .mine

wall but also from'the roof andl floor, the v planshown inFig. 17. In this operation the ,l 'y intermediate section b is first dislodged' thereby 'facilitating ithe operation of the remaining tools/inV splitting away vthe sections rep- Y vresented in Fig. A18. toward thespace from which the first section b has beenremoved.

In other words; bythe preliminary removal of the section 'b from the spaced thesplitting '1 of the remainingfsectionsa@ c', Z and c is facilitated on'account of the open spaceaf-"f forded at di l Fig. 19 illustrates theoperationwlien such Y pointed ydiggers as those shown in'Figs.' 10

and 11" are usedfi'n vertical alinementw The laico pointed tools 202, 203 and`g204 maybe placed in verticalalinement as shown in Fig.y 19 vbut in some instances itmay bepreferredto have "the "intermediate pointedr tool-V in advance of the othersas i'llustrated'in Figs. 20, 21 yand 22.

1-'I`heintermediatelsection g'may then'iiist be dislodged from'i'the space lay thereby 4 facilitating'the dislodgment bof the'upper and` lower p,

vblocks z" and j.v The pointed tool 203amay be l Y relied upon Lto dislodge the block gbecause'in Y advance of the upper and' lowertools 202 and 204.`

In Fig. 23 Ihave illustrated the method i u fof dislodging blocks of coal above and below. spaced-apartlrerfs 205 and 206 which have l been cuthorizontally Vin a mine wall prior to ythe use 4of thel spaced-apart digging coal splitters 207 and 208, the'spaced-apartfloor c f coal splitters 209 `andf210 and theverticail coal splitter 211 locatedapproximatelymidway between the floor and roof vof the mine' chamber. y j l' In'Fig. 24 I have illustrated the method of first cutting or lremoving a comparatively large section from-the intermediate space 212 l and then splitting the coal from the roof lby ymeans ofthe spaced-'apart dislodging: devices 213 and 214', and splitting the coalfrom the floor by means of the spaced-apart dislodging y A devices 215'and 216.l .Y .Y

Y In Fig. 27 I have illustrated-the advantage d ing machinetoa new forward position;

Vvery hard substances such as iron pyrites are encountered Vby cutting apparatus and such hard substances are so difficult of being cut that the cutting tools Will be dulled very `quickly or even broken and in some .instances it is impossible for the cutting 'mechanism to Vcut through such hard substances at all. By means of the diggers herein illustrated when suchV hard substances are encountered as illustrated at 213 in Fig. 27 the forcele'xerted on Ithe digging tool, While not sufficient to break the hard substances imbedded'v in the coal.1 wvill be suiiicient to break away a comparatively large section of coal as indicated at 219 in Fig. 27 thus removing Vthe coal together with the hard substances imbedded therein Without interfering with the continued operation ef the mining-machineembodying such diggingorcoal splitting tool. a

After acomplete semi-circular stroke ,of

the dislodging mechanism has been made from the position of dotted lines shown in Fig. 1 such dislodging mechanismV be quickly returned to initial position in readiness for another ser-ies of. dislodg'ing operations, after the tractor mechanism has been operated to move the entire mining and load- To effect, this quick return movement a draft rope 220 is connected tothe fra-me 54. as shown in Fig. 2 and Woundvon the drum221 connected foroperation to the mot-or 222.

When the material to be dislodged iscomparatively softso that fluid pressure motors such as hydraulic'motors are not necessaryto secure lthe requisite-amount of force to operate the diggers to dislodge the material from the mine Wall the ro e Windinoa mechanismv illustrated in Figs. 25 and'26 may be used to swing the diggers arcuately tocause themto dislodge the material. In this Vevent the 'Walking roof acks together WithV the other fiuid pressure mechanism` may bev omitted and the roof Viaclrs 34 and 35 relied'upon to h'old the main frame 28 Vin stationary posi-V tion duri-ng vthe `operation of the dislodging mechanism. The rope-Winding. mechanism illustrated in Figs. 25 and 26` includes the rope-Winding drum 221 the motor 222 and 4the .-erted on the living to `anove Jihe frame 5i toomitted and the ropenvinding mechanismk used for moving 'the diggers in dislodging dif Vrection theV upper tools 64 and 65v shown in are rigidly connected through theV Fig. 3 1 structure shown in this view to the frame 54EV so as to move bodily with the latter. Y

. lnorder tocut the kerfs illustra-ted at 205 in Fig. 23 a kerf cutter may bemounted on the main frame 28 asV shown in Fig. 2. VSuch a lreijf cutter is illustrated inFigs. V12, 13 and 14 and when out ofoperationfmay occupy the dot-tedV line position shown in Fig. 1. This kerf cutting mechanism is so mounted onV the frame28 as to be detachable there from. Y mechanism constitutes an annular ring Which is trunnioned at 226,'227to the forwardly extending` spacedeapart arms 228, 229 and the latter are pivotally connected as'illust-rfated at 230, v2317to the upper ends'ef rack bars 232, 233 extending vertically along the guide .Ways 234 l'and 235 at V,the Ysides `of the Vframe 28.'

In Fig. 2l have diagrammaticailj,"illustrated mechanism for lifting andloiveri-ng the vertical raclr bars to adi ust the elevation of the spaced-aparthorizontal beams 223 and 229 .to adjust the elevation of the k'erf cutting mechanism.V V.This 'mechanism for iiftf ing andlowering the vertical racirbars .comprises a'motor. 236 vconnected by a shaft 23'? to gearing meshing With such rack bars. A shaft 238 as shown in Fig. 1 extends transversely across the upperportion of the frame 23 asuficient distance'above'the conve yor 52 anda suiiicient distance to the right of the delivery lend thereof to' not interfere with Vthe passage 'of material being-transferred from y the hopper 53 -to the hopper 42. On theopposite Iside of frame 28 a longitudinal shaft. 239 p'ara'lflel to the shaft V237 transmits power from the transverse shaft 238 to the f-or loperating' the verticalr racks correspondingto ythose designated and 233011 the opposite side of the nfiacliine.v rlfhe starting and stopping and reversal lof the electric motor 236 is all that is necessary to regulate tfhe elevation of the parallel bars 1223'. 229 andthe ker'f cutting machine mounted thereon. Y

referring to Fig. '12 'it Vwill vbe 'seen that the ring 225 'incloses an inner ring 24() which is trunnio'ned at 2111 and 242 on axes at Vright angles'to fthe aXes" of the trunnioi'is 223, 227. Rotatably inountedvvithin "the 'ringitO is a Icircul ar yframe 243. the ring 240 'having' an annular y'bearing therefor. Depending from the disc 243'is an Aauxiliary .frame '2214 for carrying' -tvv'o electric motors 2415V 246. Thefmotor 24E-is connected fby the worm gearin@ v2J to *the 'pinion2ft3 Vwhich meshesY with the ring 240.

CIV

the annular'gear 249 at the lower portioniof Extending forwardly yfrein the aui-iliary frame 244 isa tubular vframe 250Whichcar-v.A ries atits-outer end the gear4 130x251 for vinclcsing. thev sprocket Wheel I252i1nja-closed ivhich may befilled With lubrichamber f eating material. Thek sproclzet; wheel ,52

is mounted ony the sha-ft 254Qivhich'ezrtends along the tubulark frame 250 to the gear`2e'5 which meshes with the pinion 256 onthe shatt i ofthe motor 246.

e l. Mcuntedon the-gearbox251iis Vfiat disc 257 having aballraceatitsperiphery for connection by thefcircular.A series of balls` 258 tothe cutter ring25r9 carrying the cutters '260.l 'Secured lto theouter edgescf the `disc `-257iare spaced-apart annular ,plates 261 and 2621in the planes. of theopposite' surfaces of the disc 257,. These annular rings are cf suft thereby preventing any dustor 'dirt from reaching the ballbearings.. TheVV lubricating material Within 'the chamber .253 Will ho'ivever be thrownv by centrifugalforce. frcmthe sprocket gear 252 .to the ballbearings through -a slight :space between the ring 259 and one of the plates 261 or 262. I

i Afterthe lrerf cutter shoitrninligs. 12 and y13 has been Vadjustedin ele'vationv'by operat' j n y be in a planeand such kerf vvill be of substan-y -tially .the same thickness throughout, there being no tendency to cut a conical kerf on. alc-V coun't of the .adjustment of the: inclinations ing Ythe motorf`236 shown inglig. 2,2such kerfncutter 4may also beadju'sted inV inclination eitsier onthe axisef 'thetrunnions 226',

v 227, 'to incline the kerf feutterup er' down tovvard rthegmine wall longitudinally in ad'- vanceof the mining andloadingimachme, or

on the axis ofthe trunnions 241, V242 to inelinethe'kerf cutter up ordownin the direction in which. the dislodging mechanism is i y y p rtical alinement With the r'paths vofatravel moved. By, turning the Wheel' 264 mounted f ontherbracket 265. thewhole `lfierf cutting a machine may bel tilted onlthe axisofthetrun'- I nions'226, 227 By turning the Wheel- 266 thering 240f together with the kerf cutting mechanism mounted thereon may betilted Y .on4 thefaxis lofthe;trunnion 241, v242. YIt

shouldbe noted that the Wheelf2661isfree to turninthe bracketf267 whichv is connected tothe ring 240.- The wheel 2661is provided.

with ascreW threaded rodv 268 Whichis screw -threadedrthrough the bracket 269 on the ring A'225 a'short distance-from the trunnien" 241.

rEhe loosenessof the turning connection at 1:' 270 may be reliedupon topermit relative'tilting! movements betweenfthe ring 240'and the ring22.,v y i i 1 l, The vvheel264 ismounted loosely for turn- Y Y ingfmo'vements 'in the bracket 265,-'Which is attachcd tothe arm'229. A'scre'W-threaded'rod Y Y.Whichjis attachedtothe outer ring 225. `The looseness of the connectionbetvveenthe rod 2 2711311@ the, bracket; 265v may-"be: relied upon j Y' means for operatingvthe kerf-cutter.V `271extendsupvvardlyfrom the Wheel 264-and Y Y isscrew-threadejdthrough the braclet' 27 2 to permit of thedesired tilting of the entire -lerf cutter Von the axis of the trunnions kment of the'kerf 'cutter on an upright axis atl 'g5 Y the center of the disc 243. rIhekerf cutter is so mounted on the'm'achinej that itmay cutV j aderf in Yadvance of the Idisledging Vmechanism and such a kerf maybe cut independenti ly of the operation of the dislodging mechaf *Se nism, either before the latterbegins to oper- 'Y n ate or'during lthe'operation thereof. 1t Yvvil-l Aalso be seen that by reason of thelindependent operatien ofV the-kerf cuttingmechanism a plurality'of kerfs may be cut 'at various are' elevations before the dislodging mechanism Vis operated to dislodge material adjacent said lerfs. p It should bev particularly-*noted that. fthe ,plane ofthe kerf. cutter is at all `times subjttxr i stantiallyat right. angles to the upright axis of arcuate swinging mov'ementjo'fthe frames 244 and 250. Itis therefore obvious .that lirrespective of theV adjustment of the :kerf cutter, Whether to .one side o'r-itoltheothero'r Whether up or down the kerf cut Will' always aine of the kerf cutter.v It vvill also. be seenv by referring to Figs. `1 'and' 2 thatthe 'center' of the disc 243is approximately in vertical alinement with theaxis. 56 so thatxthe inner ends of the kerfs Will be approximately'.in.ver-k of the coal splitting'toolsi-'f'fBut the axison Which` the lrerf cutterV is swung Willalways rbe shifted to one side or theother 'or forvvardvlyorbaclrvv'ardly in accordance With the adjustments on Ithe various trunnionsfshovvn in'Fig. 12 because the kerf cutter shown lin f Figs. 1'2and 13 is a self contained miningmachine Whereinthe plane ofthey kerf cutter always remains at right angles to the axis extending through the discY 243 Vatthe center thereof Aand at right angles thereto. 1 y v Infthe co-pending application SerialNo. 226,690, filedOctober `17, 1927 for kerf-cutters `'for mining apparatus, as a division of' they present application, there is ,described` .and claimed the universal mounting of the keif-'cutter and the adjusting mechanism forl such universalA mounting, combined With Y Serial No. 306,309,1iled September 17, 1928, Y V for .method of andarparatus for mn-ing C021', '13@ there is broadly claimed the universally adjustable. support for a self-contained lrerfcutting machine, combined with mechanism by the claims hereto appended, and I wishV therefore not to be restrictedv to the precise Y construction herein disclosed.

Having thus fully described'my invention what- I desire to have protected by Letters Patent of the United States is:

1. Inl a mining and loading machine, digging mechanism, framework for supporting said digging mechanism for arcuate movement along an uprigh mine wall, hydraulic means for pushing said digging mechanism to dislodge material from such upright mine wall, and loading apparatus for automatically receiving the dislodged material and transferring such dislodged material to loading position. Y Y

2. In av mining machine, the combination with a supporting frame, of a plurality of spaced-apart penetrating splitting tools each having an upright knife edge and wedging surfaces receding therefrom and mounted on said frame in an upright series extending from the floor to the roof of the mine chamber and each mounted on saidY frame in a stationary positionV relative to said frame, means for operating said tools by moving the same arcuately as a unit relatively to said supporting frame to cause said tools to penetrate the solid face of the mine vein and dislodge the mineral therefrom in large pieces over a Wide-area extending from the'floor to the roof of the mine chamber.

3. In a mining machine, the Vcombination with a supporting frame, of a supplemental frame mounted thereon for movement relatively thereto, an upright series of spacedapart coal splitting tools mounted on said supplemental frame and movable bodily therewith, and fluid-pressure mechanism for exerting powerful pressure horizontally on said supplemental frame to move the same arcuately and horizontally relatively to said main frame andpush the said coal splitting tools into the solid face of the coal vein to penetrate the latter and split and tear large pieces of coal from the unminedmass. Y

Li. In afmining machine, the combi-nation with' a supporting frame, of digging mechanism mounted thereon, and means comprise ing a pairl of' alternately operable roof jacks for moving said frame to eect the operation of said digging mechanism.

5. In an arc-wall mining machine, the ccmbination with a main frame, of a supplemental frame pivoted thereto to swing on an upright axis, dislodging mechanism comprising a series of spaced-apart knife-edged penetrating'wedging toolseach adapted to penetrate the'solid upright face of a mine vein and by wedgingaction split large pieces ofmineral therefrom over a wide area, said dislodging mechanism being rigidly connectedv to said supplemental frame to move ,bodily therewith horizontally along the working face from one side of the'mine chamber to the other, and

idly connected thereto, and means comprising walking roof jacks for moving saidzframe along an upright mine wall to effect the operation of saidl dislodging apparatus.

In a mining machine, the combination with a movable frame, of a supplemental frame p ivotally connected thereto'for arcuate movement on an upright axis, vdislodging appara-tus mounted on said supplemental frame to move bodily therewith .and comprising mechanism adapted to penetrate deeply the vsohd Aface of the mine vein and by wedging action split large pieces of coal therefrom, said coa?, splitting mechanism being rigidly connected to said supplemental frame in position to project forwardly'therefrom in an upright series, and walking-roof jack mechaism for forcibly moving lsaid supplemental frame -arcuately relativelytovsaid first-named frame to effect theoperation of said dislodging mechanism. Y 8. InV a mining machine, vthe combination with supporting framework, of coal splitting mechanism comprising spaced-apart split- Vting tools, asupplemental frame for supporting said splitting tools for bodily movement Vtherewith in position to project fromrtheupper side of saidsupporting frame to dislodge material approximately ,ini the plane ofthe Y Y roof ofthe mine chamber atxthe upper `portion of thev mine wall, means for rectilinearly adjusting the elevation of saidsplitting tools tol adapt the same to,` roofs of varying heights from the floor',` and means Vfor forcibly moving saidsupplemental frame continuously forward to 'cause-the splittingmechanism to dig into the materialin its native bed straight along the roofand dislodge the materialv therefrom. "j Y e Y 'i 9.- In a mining' machine, the combination c A1,755,332 i jcausesaid roei "jaclsntobe moved forward ytoAanchor-ving positions. alternately and to .cause saidY frame to beV movedforward stepby-stepto force said coal-splitting mechanism intoA engagementY with the c oal to split 'the' latter from the unniined mass. v l

10. In a mining machine, the combination witha frame, means-foi' adi Listing the elevation of A said frame, l dislodging mechanism mounted on Ysaidv frame,y aroo ack, aiiuid pressure motor :connected between said roof Vjack `'and saidV frame and adjustable in velevvation along saidfroof jack, and means forycontrolling theopeiation oi''-` said dislodgingv mechanism by effecting movement of ,said frame by the operation of said liiuid pressure motor. when said'rooi'jack is in anchored polli lnja miningmachine, the'combination lvwith a lframe, of'cfoal splittingfmechanism mounted on saidframe position tofpeiietrate and by: wed'ging action split coal from anupright i'ninewall adj acentthe roofv of the mine chamber;means', for vertically adjustingtheelevationn offsaid coal lsplitting mechy anismiii accoidancewiththe Vheight of the f io Aroei?, 'roof-j ack mechanism Vto serve as abutment mechanism, vand* fluid-pressure? motorV mechanism :between Y said I :abutment mechamsmV and saidco'al splitting mechanism to vpush 'the latter alonfrrthe'coal veinto operateV I. n b i l said coalpsplitting fmechanism. Y c

12.- ln a ,mining machine, the combination Awith '-a'fiiram'e, of al piercingwedging tool pivotedto saidfra'me.,onahorizontal axis in po- .sit-ioiito Vact on theroofloi: amine'icha'mber,

,p aiiuid-pifessure motor ioradjusting the pol sition Loi said tool-relativeto saidirame, and

hydraulic meansfformoving said lframe pivptally' to ,effect b'odily-'movement ytherewith O' ,saidtool to 'cause tlielatter to dislodge m'aterialfrom such roof. y Y13. ln a mining machine, thev combination with a movable frame, cfa'diggi'ng' tool pivote'dthereto .and projectingV downwardly therefrom'inposition to digintothe coal of a mine vein along; the floor of a miiiechaml ,ber to split portions of the coalfrom the un- Yfio i split lcoallrom the-floor ofa mine chamber.A

`mined linass,v fluid pressuremechanismV for adjustingltlie position of said diggingtool. relative to said 'frame and locliingsuchv tool inf'adjusted position to yhold it [rigidly `conx` nectedA to fsaidframe. for bodily movement therewith, and hydraulic meansfiorexerting power ful pressure 4 on said, f frame .to operate said digging toolin its adjusted position to i4;v hln-I afmning. machine, Vthe combination a .Siirivfrtilsy frame @i einnehmen! 4frame' vmounted thereon to swing arcuately 'on anxupright axis, dislodgiiifr ymechanism mounted onv said supplemental irame, arroof jack, and a fluid pressure motor pivotally .pnnectedto said roofjack and pivotally connected to said supplemental lframey .toy move said vdislo'dtf'ing -mechanism arcuately while said roofj'aclrisfanchored;

15. In a Vmining machine, the combination witha movable iframe,` lof dislodgingmecha-vr nism mountedthereon, a pair'of roof jacks,.a @plurality of fiuidpressure motors pivotally connected to said roof-j acks and pivotally connected to said frame, andv means for. control-` ling the .operationof saidroof jacks and the yoperati-on of saidjmotorsto secure a walking Qaction'oi* said roof jack and a step by step forward movement of said frame to eect the .operation of said dislodgiiig mechanism.

Y .16@ Inaminingand loading machine, the

combination with' arame of *dis'lodging mechanism inountedon said frame-for moveinentf along amine wall infa'predetermined direct-ion, `said dislodging mechanism comprising aseries'of spaced-apart penetrating Asplitting tools, atraveling conveyornon said frame in `'advance ofi said? dislodging mechanisml in position tofreceive the material as '.dslodgedy by said kdislodging .mechanism, means. for moving said frame to cause said ,splitting'tools topenetratelthe mineral in its` native bed and by wedgingaction split large pieces therefrom onto said conveyer, and

means for operating: said :conveyer-while 'i ii'riaintained in iixed 'relation'jto saidvdislodgico ing mechanism for bodily movement-therewith. 17; In a mechanism mounted'at the Vouter end of said wsupplement'al gframeto have an arcuate path' mining'aiidloading machin@ the .combination with a mainframe, ofa supplevmental frame connected'to said main `frame toswing on anupright aXis,-multiple ldigging of travel/when said .supplemental ltrame is rswung-'on saidupriglit anis, hydraulici'means for kswinging said. supplemental frame toy effeet the operationfo'f saiddiggingmechanism `v,to dislodge material along an arcuate upright 'Y vmine wall, and loading` apparatus comprising fafconveyorwith a-ieceivingend ad]acent said dislodgiiigi thereof. "lj n A Y j l 18. Ina miniiigand loading machine, the

.mechanisml Vand finl-4 advance combination withva main frame, 'of afsup-' y'plem'enml `iframe:swingable on .an upright iio izo

.aXis,A dislodging mechanism` mounted on said y l,

supplemental'i'rame and dependent entirelygarf upon movement .off the latter.l for .its operation, hydraulic mechanism fOr- SWngIls Sad .supplemental frame Vtoyimpart .to said dislodging mechanism a translatingmovement ,correspondingt-ofthatjo-said supplemental A Y traine to thereby eifect the operation ofsaid` v dislodging mechanism, Vloading Y namen-Sms; a; @Onri the vio rearwardly of saidv conveyer and Vin fixedv relation thereto in position to dislodge inaterial from an upright mine wall onto said conveyer, and means for bodily moving said dislodging mechanism together with said conveyor to veffect dislodgment of material from an upright mine wall onto said conveyer. i i Y 20. In a mining and loading machine, the combination with a movable frame, of a conveyer mounted thereon, means in advance of vsaid frame but bodily movable therewith for directing' material from Vthe floor of amine chamber onto said conveyor, dislodging mechanism Vmounted on the other side of said conveyer in iixed 'relation thereto for.

bodily niovemefnttherewith while occupying a position to dislodge material so as to be received by said conveyer, and means for exerting; continuous pressure on such dislndging mechanism tojincve the saine bodily.

together with said conveyer and said directlsllslS-p Y 2i. inra mining and loading machine, the

c'omninatien with a movable frame, of a V'traveling coi'iveye'r.mounted thereon, means Cil.

for penetrating .the coal to split and tearV it from the native vein, said penetrating means being mounted on said frame,A means for moving said frame to causesaid means to thus dislodge the coal from the unmin'ed mass, and reciprocating mechanism for transferring ing end of said conveyer. Y

22. In amining and loading ma'chine,ithc combination with a movable` frame, of a. conveyor mounted on the Afront portion thereof, dislodging mechanismimounted on the rear portion ofV said frame,'means for operatin said vclislodgingr mechanism to dislodge material from an upright mine wall at the receiving end of said conveyor in front of the dislodging mechanism, andV reciprocating mechanism for transferring dislodged material on to said conveyor.

.23. In "a mining and loading machine, the

l"combination with a movable conveyor, of

dislodg'ing mechanism following said conveyor in position to dislodge material at the feceiifingend 'of 'said conveyor, and means for movingthe disloc gedmaterial on to the receiving end of said conveyor whilethe latter remains advance of saidV dislodging mechanism.

' Q4. in a'niini'ng and loading machine, the

i tion. dislodged coal onto the receiv-V combination with amain frame, of a supplemental frame, an endless conveyor inclined downwardly towardy the floor, dislodging mechanism mounted on said supplemental frame rearwardly of the receiving end of said conveyor, means for swinging said supplemental frame on an upright axis on said mainframe to effect the operation Vof said dislodgiiig mechanism while said conveyor remains in fixed relation thereto,and recip- 'iocating mechanism mounted on said supplemental frame in .position to transfer dislodged material on to said conveyor. Y n

25. ln' a miningV machine, the combination with a main frame, of a supplemental frame tively thereto on an upright axis, kerf cutjting mechanism mounted ongsaid main frame to swing on vsuch upright axisV independently of said supplemental frame,digging mecha- 'iiisin mounted on Ysaid'supplemental frame, means for swinging said supplemental' frame onsuch upright axis to effect the operation of'said digging, mechanism, and means for operating said kerf cutting mechanism including swinging movement thereof onV such upright to lrerf-cut the mine wall in advance'of the operationof said digging opera- In a mining and loading machine, the combination with a main frame, of a supplemental fra-me swingableon an upright axis on 'said main frame, loading apparatus comprising conveyor mechanism onA saidY main and supplemental frames, digging mechanism on said supplementalframe, means for swinging said supplemental Aframe toeffect .theV operation `of said digging mechanism, f f' herr cutting mechanism mounted on saidV main frame to swing on approximately said upright anis independently ofV the swinging of said supplementalframe, and means for operating said kerf cuttingmechanism including swinging feeding movement thereof on such upright aXis to effect kerfeutting in advance of said;diggingninechanism; 28. In lcoal mining apparatus, the ycombination with a supporting frame, of ahorizont-ally swinging tool-carrier on said supporting frame, a plurality vof spacedeapar't dislodging tools each adapted to penetrate the coal-,in its nativevei-n and'by Wedging aceect the arcuate operation of said digging 'tools to dislodge intermediate sections in ad'- vance of sections above and below such intermediate section.

39. In a mining machine, the combination with a supporting frame, of kerl-cutting mechanism mounted on said trame to have a swinging-feeding movement Yon an upright axis at the forwardi'portion of said -frame, VVdislodging mechanism mounted on said supporting frame for swinging-feeding movement on said upright axis and comprising a series of spaced-apart penetrating wedgiiig tools for'engaging the vkerf cut bodies of the minel vein'to tear the same asunder'roni the unmined Vmass, and power-operated mechanism for forcing said tools alongtheir arcuate dislodging paths of travel on such upright axis. I 40. In a mining machine, the combination with kerf-cutting mechanism for-cutting a horizontall kerl' intermediate the floor and v,

'roof of a mine chamber, of a movable frame, digging devices carried by said frame, and power-operated mechanism acting on said Vframe to cause said digging devices to dislodge from the unmined mass bodies of material aboveand below suchfkerit,

41. In a mining machine, the combination with hert-cuttingV mechanism i:"or cutting a horizontal kerf intermediate the floor and roof of the mine chamber, of a movable frame, dislodging mechanism carried by said xframe in position to penetrate the solid mineral above and below said horizontal kerf, and power-operated mechanism actingon said frame to cause said dislodging mechanism to dislodge the unmined mass ot bodies of material from the licor to. such kerf and from the roof to such kerf. Y V ,1

42. In av mining machine, the combination with asupporting frame, fof' hert-cutting mechanism mounted thereon, a supplemental frame connected to said supportingfframe to swing. relatively thereto, dislodging mechanism comprising spaced-apartV penetrating wedging devices connected toV said supplemental frame rigidly to move bodily theief with, said penetrating wedging'devices being in position to acton the Vsolid aceof the mine vein outside of the kerf cut by said kerl-cutting mechanism, and-power-operated mech- Y mass.

anism acting on said supplemental frame to `operate said dislodging mechanism to dislodgesaid hert-cut material. p A

43. In a mining and loading machine, the combination with a main: rame,.of a 4supplementalframe 'mounted on said main frame for swinging movementon an upright `axis through anl angle of 18C) degrees or more, spacedapart penetrating-gV iv-edging tools mounted'on said-supplemental frame in po-` sition to pierce the upright" face of a solid coal Vvein and by wedging action split theV coal from the unmined mass inlarge pieces over a widearea, digging mechanism pi'votedl to said supplemental frame inposition to move bodily therewith along the licor of the mine ,cham er adjacent-the base of the mine wall, and hydraulic means for swinging said supplemental frame on such upright axis to effect the operation .ot the vcoal splitting penetrate the solid mineral outside of said vkerl-to dislodge the materialiadjacent said kerf, and mechanism for exerting a `continuous forward force onsaid dislodging mechanism 4without retracting the same to secure the breaking down of the material adjacent 45. In ya mining machine, the combination 'with a supporting 'vf-rame, Lvof a `lferf cutter mounted thereon to swing on an upright axis, a digger mounted on saidframe to swing in an arc iii-position to act on the material outside of said kerf to dislodge the sameadjacent'said lierf, and means for exerting force onfsaid digger to, move the lsame forward only and cause the saine to dig intothe mine wall and split portions' of material from the unmined mass.

T46. In a mining machine,the combination with a supporting frame, of hert-cutting mechanism thereon, digging 'mechanism mounted on Vsaid 'frame Yin positionfto' dis- "lodge material adjacent the lierf produced by said hert-cuttingy mechanism, digging mechanism mounted on said frame for move- Vment relatively thereto inpositionto vact outside-of the cut kerf to dislodge material adjacent said kerf, and means" for giving said digging mechanism a slow lforward movement with suilicient force to dig into and split portions of the mineY wall from the unmined mining and-' loading rmaclfiinfe com.

a main conveyer, a supplemental conveyer arranged to bein advance'ofsaid dislodgV ing apparatus during movement of the latter dislodging mechanism'stationarily'mounted Y thereon for operation on van upright mine along an arc offlSOor or more,-and means for operating said;l supplemental conveyer vto deliver dislodged material to said main conzveyer throughout suchI range of movement ofl said supplenfientalv conveyerg 48.V In a'mining [and ,loading machine, the" Y combination'witha main'conveyenof a supplemental conveyer mounted'. 'for arcuate movement while remaining in-delivery communication, with said main conveyer, and diggingv mechanism mounte'dfbehind vsaid supplemental conveyer and' adapted to move always forward'to' split portions of material sition to be received -by said supplemental conveyer while the latter remains in advance of'fsaid digging'mechanism. a

4:9.V A mining and'loading machine comprising apparatus for' digging into an up-k right mine wall andfsplitting therefrom a' crescent-shaped masslof material in Tone continuous feeding movement, means forV operating said apparatusincluding Varcuate feed thereof, a main conveyer, anda supplemental conveyer communicating with said `main conf veyer throughout a range of approximately 180 lfor delivering dislodged material from vthe'mine wall to said main fconvey'er during the operationof said dislodging apparatus* [50.l VA'mining machine comprising aframe, piercing' wedging 'mechanism v stationarily mounted on said frame for operationen a mine wall by` concentrated pressures distrib utedatspaced-apart points alongv such mine' wall, and :power-operated y"mechani'sm com# prising walking" roof jacks for moving vsaid frame along the upright mine' wall vto effect JBO the operation ofsaid piercing wedgingfmechanism to secure suchl distributed concentrated pressures to split'the coalin large pieces fromr a mine wall over awidefarea. l

5l. A mining machine comprising 'a frame, dislodging mechanismstationarily' mounted on the frame for operation on' an lupright mine wall, power-operated mechanism conm-V- prisingroof acks, and fluid pressure motors between said-roof. jacks and said frame forI moving Ythe frame along the uprghtmine wall toy effect the operation of the dislodging 52. Ay mining machine comprisinga frame, dislodging mechanism stationarily mounted on said frame yfor .operation on lan upright mine wall, a pair of roof jacks, fluid pressure motors connect-edrespectively betweenV said roof Jacks and said 1 frame, means for iconf lodging mechanism.v

means for adjusting 53. A ming machine comprisin'v'gfaframe,

wall, power-operated mechanism comprising roof jacksffluid pressure motors for moving the frame along the upr-ightminewallto effect the-operationof the dislodging' meclia-`I 1 nism, andmeans for adjustingthe' elevation of the fluid pressure. motorscpalong theroofV l 54.5Ai mining machine comprisinga frame, Y,

jacks.l

positions-alternately and to cause the frame". vto move forwe'irdv step-by-stepl .to effect the operation of said dislodging mechanism,`fan`d I the elevation of thefdis" dislodging trimming vtoolsv mounted o'nA said' j frame in stationary position relative thereto i while in operation onfanupright minewall, pivotalY mountings forl said tools in position nis'ni, 'and means comprising a scoop in. ad-ffy vance of the conveyer for directing material from tlievfloor ofthe 0mine chamber to the l"conveyenf 56.v 'A mining machine comprising a'plu;r rality of'claw-like, straight knife-edgedv piercing wedging tools disposed infan'j up-'f right series and distributed over the` mine` wall between thefloor and tlie'roof of the'k mine chambeigwmeans for supportingl a tool `intermediate the floor and the roofin advance Aof ythe other tools .in position to dislodge an intermediate'section of the mineveininlarge 4v pieces prior-tothe dislodging' of v sections 'above and? below, v`and f means for'l operating. saidy tools. by 'a'unidirectional force to move f Athe tools continuously along the mine' wall back from the face thereof to eifect thesplit-V y V ting of the mineralin large pieces both above i and below 'such toolsV and the dislodgingiof su'ch mineral over a wide area of theface of the mine vein and extending from the floorv "to the roof.

ltherefrom, which consists in deeply penetrating and wedging coal to split the same from the unmined massfby the application of 12;:

*forces distributed at spaced-apart positionsg".v` Y 125,` .I the floor and roof by removing'ragged pro` i Y acrossthe face ofthe mine vein, trimming jectionspleft afterfsuch dislodgmentof/the coal, and cuttingakerfinthe mine'veinbe, Y

tweenthe iioor and the roof:

58; A mining machine including 1 av frame,

iso

spaced=apart knife=edge piercing Wedging tools each mounted on said frame inv statiQllary position relative thereto and Veach adapted topenetrate the solidface of a mine vein and Vloy Wedging action'split and tear large pieces of mineral therefrom, means for adjusting said tools relatively to each other and relatively to said frame, and power-operated mechanism for operating said; tools.

While all of .them remain stationary relative to 'saidframemine Yvein, Walking roof jaclraflnid pressure motors between said root jacks and said tools,l and means for controlling the operation of said .roofjaclgs and of said fluid pressure motors to cause lsaid Vroof jacks to be moved Vforward to anchoring positions alternately and. to cause said tools to he fed forward step-by-stepL k61. In a mining machine, the combination With a supporting trame, of dislodging mechanism mounted thereon, a roof jack, a iinid pressure -motor connected to .said dislodging mechanism, and a connection between said motor and. said roof jack to serve as an ahntment when said roo-f jack; is anchored, said connection being slide-ble up and down on said roofiack.y Y

62. a mining machine, thecombination with a movable frame, of spaced-apart penetrating vvedging tools mounted on said frame .to move. therewith, means for moving said frame arcuately to Vfeed said tools, and a iloorl jack hating an adjustaloley floor-engaging shoetognide'said frame over the door dur-ing the feed ofsaid tools.

v68, In a mining machine, the combination with a snp-porting frame, of disiodging mechanism mounted thereon, Walking roofjacks, fluid pressure motors adjustable in elevatQn alQng Said roof jacks and connected loetween the latter and said dislodging mecha-v nism, and means for controlling the operation of said roof jacks and of said tluid pres.- snre motors to cause said root jacks to be moved forward to anchoring positions alternately and to cause the operation of said dislodging mechanism.

with a" supporting frame, of dislodgingmechanism mounted thereon in position to operate on upright mine Wall, additional dislodgtvall to eiect the operation of' ing tools pivotally mounted on said frameto aot on the floor and roof ofthe mine chamber, Y

fluidV pressure motors to adjust thfepositions ofsaid additional vtools, and hydraulic means for operating all of the. aforesaid dislodging mechanism andv tools to secure operation Y thereof.

65. In a mining machine, the combination With a supporting frame, of dislodging mechf anisrn mounted thereon andoomprising a Vplurality rof knife-edge `piercing Wedging tools distributed in an upright series for Voperation on the upright face of a mine vein,

a conveyor disposed in Vadvance of vsaid dislodging mechanism` for vcarrying away the material broken down `from the mine Wall bythe said piercing Wedging tools ascoop monntedinadvance of the conveyor for di4 rooting material from the floor to saidrcone. veyor, means for Voperating said conveyor, and means Jfor operating the dislodging mechanism by causing said tools to penetrate the solid face of the mine vein and vloy Wedging action split and tear the material from the mine vein while saidconveyor remains in advance of said dislodging mechanism.

66. In a mining machine, the combination with a'suppor-ting frame, of a supplemental frame pivotally connected` thereto, dislodgingmechanism on said supplemental frame, means for swinging saidsnpplementai trame to -feed said dislodging mechanism, seli-cony tained hert-cutting mechanism mounted on said supporting frame Afor swinging feeding movement along the mine Wall operated on by saidfdislodging mechanism, means for bringing said kert-.euttingmeohanism into cofoperatilon with said dislodging mechanism for keeping it ont of operation during the operation of said dislodging mechanism, and

means for adjusting the height andl inclinaf tion of said kerf-cnttingmechanism indes pendently of. said dislodging mechani.sm.l

-67. In a. mining machine, the combination with a supporting frame, of a series of spacedapart knife-edged penetrating Wedging toolsV mounted on said frame one adjacent. thel floor of the mine chamber and l another adjacent the roof of the mine chamber and a third ini termediate-tool advanced ahead of the floor and roof tools to, dislodge an intermediate section ot material from the mine Wall priorV` to dislodging adjacent sections, land means forV oper-ating the tools, to cause the same to Y penetrate the solid face of the mine vein and by Wedging action split large pieces of` mineral Overa Wide area Without Vheing aocompanied hy any more than a very small amount of tine particles of thel'mineral.

68. In a mining and leading machinathe c Y l combination With Aa main frame` adapted to -64- In a mining machine, the combination' occupy. al stationary position, o f a main conveyor mounted on said Jframe in iXed relation thereto, a supplemental frame mountedat the forward end of said main trame for swinging movement relatively thereto on an upright axis' from aposition at right angles Y to the longitudinal length of said main frame, Y at one side thereof to a position atright angles p to such longitudinallengtli 'at the other side of said main frame, ajeonveyor onV said supplemental frame inl delivery communication' with the main conveyor throughout an yangle of approximately 180, a rear swinging conveyor mounted to swing' laterally` through a wide angle relativelyv to said 'main frame, means for maintaining delivery communication between said main'conveyorvand said rear swinging` conveyor throughout the .v .Y f lodging mechanism comprising an upright range of angular movement of the latter, disseries of penetrating wedging tools mounted on vsaid supplemental iranieto move bodily therewith in position tov dislodge the material from the upright mine wall to he received by said forward lswinging conveyor, and

means for swinging said supplemental frame i to effect the operation vof said dislodging tools and the maintenanoeofsaid swinging con-V, veyor in receiving position relative to said dislodging tools.

69. Ina mining machine, the CombinationY with a supporting frame, of transporting mechanism therefor comprising traction treads, roof jack mechanismV (zo-operating e with said traction treads to vanchor said supporting'frame, dislodgiiig meolianismeomyprising an upright series of penetrating Vwedging tools mounted onY said frame to have a swinging-feeding movement relativelythereto on an upright axis,V and means for i operating said dislodgingmeohanism including swinging-feeding movement thereofwliile said mai-n frame remains anchored by' saidroof jack mechanismV andsaid traction treads;L 1

In testimony whereof I have signed my name to. this specification on lthis 19thday of Deoemher,rA. D. 1919.:

Y EDMUND @MORGAN l1 f 

